M 5.9 in Northern Mariana Islands on 13 Feb 2018 02:03 UTC

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 5.9M
Depth: 10 Km
Lat/Lon: 13.843 , 146.661
Event Date: 13 Feb 2018 02:03 UTC
Exposed Population: No people within 100km
Source: PTWC pt18044001
Inserted at: 13 Feb 2018 02:13 UTC
INFORM Coping capacity of the alert score: 1.1 (Northern Mariana Is.)


For more info on GDACS alert score click here.
  Earthquake GDACS score
PTWC 0 0
pt18044001 Scaled population (vector) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1198679 0 13 Feb 2018 02:03 5.9M, 10km N/A No people affected 00:10 PTWC
1198682 0 13 Feb 2018 02:03 5.7M, 10km 3.39 No people affected 00:12 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1198682 13.822/146.471 5.7 10 3.07 13 Feb 2018 02:16 00:13 (new episode)
2 0 1198682 13.822/146.471 5.7 10 3.39 13 Feb 2018 04:06 02:03 (upd of #1)

Affected Provinces

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Affected populated places. Areas of interest

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Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.


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Nuclear plants

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More information

For a full list of available products related to this event, please refer to the GDACS Resources page.